<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>浮动-产品布局</title>
  <style>
    * {
      margin: 0;
      padding: 0;
    }

    li {
      list-style: none;
    }

    .product {
      margin: 50px auto;
      width: 1226px;
      height: 628px;
      background-color: pink;
    }

    .product .left {
      float: left;
      width: 234px;
      height: 628px;
      background-color: skyblue;
    }

    .product .right {
      float: right;
      width: 978px;
      height: 628px;
      background-color: brown;
    }

    .product .right li {
      float: left;
      margin-right: 14px;
      margin-bottom: 14px;
      width: 234px;
      height: 300px;
      background-color: orange;
    }

    /* 第四个li和第八个li 去掉右侧的margin */
    .product .right li:nth-child(4n) {
      margin-right: 0;
    }

    /* 细节：如果父级宽度不够，浮动的盒子会掉下来 */
  </style>
</head>

<body>
  <!-- 版心：左右，右面：8个产品 → 8个 li -->
  <div class="product">
    <div class="left"></div>
    <div class="right">
      <ul>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
      </ul>
    </div>
  </div>
</body>

</html>